EP 2925017 A1 20150930 - Electrostatic loudspeaker for providing an acoustic signal with a corrugated diaphragm
Title (en)
Electrostatic loudspeaker for providing an acoustic signal with a corrugated diaphragm
Title (de)
Elektrostatischer Lautsprecher zur Bereitstellung eines akustischen Signals mittels einer gefalteten Membran
Title (fr)
Haut-parleur électrostatique de fourniture d'un signal acoustique avec une membrane ondulée
Publication
Application
Priority
GB 201405464 A 20140327
Abstract (en)
An apparatus and method wherein the apparatus comprises: a diaphragm wherein the diaphragm is configured into a corrugated arrangement comprising a plurality of folds; a plurality of bias electrodes where the bias electrodes are provided between folds of the diaphragm; and an input configured to provide at least one control signal to the diaphragm to cause movement of the diaphragm to generate an acoustic signal; wherein the diaphragm is configured such that bending stiffness of the diaphragm provides a restoring force to the diaphragm which causes the diaphragm to return to a neutral position when no control signal is applied.
IPC 8 full level
CPC (source: EP GB US)
H04R 7/14 (2013.01 - EP US); H04R 19/02 (2013.01 - EP GB US); H04R 9/046 (2013.01 - EP US)
Citation (search report)
- [XYI] CH 524943 A 19720630 - HEIL OSKAR [US]
- [YA] US 2003161494 A1 20030828 - BAUMGART FRANK [DE], et al
- [A] DE 102007029560 A1 20090102 - MUNDORF EB GMBH [DE]
- [XA] JP 2007274395 A 20071018 - YAMAHA CORP
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2925017 A1 20150930; GB 201405464 D0 20140507; GB 2524550 A 20150930; US 2015281847 A1 20151001
DOCDB simple family (application)
EP 15160442 A 20150324; GB 201405464 A 20140327; US 201514666070 A 20150323